Squirrel?

I went for a walk this morning to the local arboretum to catch some pics of squirrels there. They are usually quite friendly and come down near your feet if you feed them.
It was a bit later in the morning than I had intended to go out. I scouted around and found myself a nice spot to sit and set up my camera and tripod and waited.
A squirrel came down near a cut up tree trunk and started to eat a pine cone. I was just about to take the photo when a dog came running past and the squirrel ran up a tree!
Hence the duck!